[RESOLVED] GetDIBits Crash Issue

VB6
Windows 7

Okay, so I downloaded this code from http://www.tannerhelland.com/45/image-contrast-vb6/ to change the contrast of an image in real time. The problem comes when I change the image to something else, say http://i.imgur.com/m2yRhVv.png . When I changed the image of one PictureBox, I made sure to change the width/height of the other PictureBox, as the code requests. I've run the code in both the original project and copied the code into a new project of my own and I get the same results: it works with the provided picture but not with the one I've linked to on Imgur. Any help would be greatly appreciated.

Tanner is a regular here so you are probably in luck. For the rest of us, far too little information is provided. Generally crashes occur because the size of the buffer you are writing to is too small or the one you are reading from, you've read past its size. Possible you didn't account for scanlines on DWord boundaries?

I see. Thing is, I can't narrow down where the crash is happening simply because the image changes. If I could find where the buffer is, I could change it..... that is, if I knew how.

@Conroy: if you'd waited a little longer, I could have handled all this via the email you sent me, instead of bothering poor vbForums users with my old, buggy code. ;)

LaVolpe's psychic powers are strong, and it was indeed a DWord problem. I've uploaded new .zip files that correct the issue.

If you have any other questions about the code samples at my site (which are 15 years old at this point, and probably need to be revisited) feel free to contact me directly. I'll reply as quickly as I can.

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Originally Posted by Tanner_H

LaVolpe's psychic powers are strong, and it was indeed a DWord problem. I've uploaded new .zip files that correct the issue.

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No special powers, just lots of similar experiences :(

Thanks guys. Tanner, after I wrote the e-mail I assumed that the page was super old and you might not even have the same e-mail address or even administered that site any longer, hence my post here. ;)